Reduce the occurrence of reflection for many known cases

[MikeEdgar]

Relates to #191 and also the fix for quarkusio/quarkus#2961.

The idea with these changes is to mostly eliminate the fallback to reflection during the "is a" tests used by class/annotation scanning by including a small internal index of JDK classes most commonly used. Ideally, this would eliminate the need for any downstream work-around like in the fix for quarkus 2961.

[kenfinnigan]

Looks ok from my perspective. @EricWittmann or @msavy any thoughts?

@MikeEdgar does this work ok with Quarkus master?

[MikeEdgar]

@kenfinnigan , I tested this with the repo referenced in quarkusio/quarkus#2961 using Hibernate+Panache and Quarkus 0.24.0. I can run some additional tests with master as well.

[msavy]

This seems reasonable to me. I experimented with some similar techniques early on with my prototypes, but decided not to pursue it at the time (favouring runtime with the thought that this would reduce unnecessary indexing).

However, given the Quarkus model, this approach now likely makes more sense than before.

[MikeEdgar]

However, given the Quarkus model, this approach now likely makes more sense than before.

Thanks @msavy for the feedback. I think going down this path will allow the annotation scanner to further skip introspection of some of the JDK packages to prevent unexpected results like seen in #193.